Izvestiya of Saratov University.

Mathematics. Mechanics. Informatics

ISSN 1816-9791 (Print)

ISSN 2541-9005 (Online)

тензор Риччи

Homogeneous spaces of unsolvable Lie groups that do not admit equiaffine connections of nonzero curvature

On the Geometry of Three-dimensional Pseudo-Riemannian Homogeneous Spaces. II

On the Geometry of Three-dimensional Pseudo-Riemannian Homogeneous Spaces. I